Answer:
A. During an earthquake, the stream is lifted to a higher elevation.
Explanation:
Rejuvenation (also known as downcutting) of a stream can be caused by the uplift of land. Out of the answer choices, answer A is the only one that can cause an uplift of land.
The correct answer is D. As levels of carbon dioxide increase, average global temperatures are increasing
Explanation:
During the last decades, especially since the beginning of the Industrial Revolution carbon dioxide levels in the atmosphere had increased, this can be explained as changes in the manufacture processes and in society had led to extensive use of fossil fuels as well as massive deforestation. Additionally, the increase of carbon dioxide along with other gases had caused the global warming that refers to an increase in the temperature due to the heat and radiation that is trapped by greenhouse gases such as carbon dioxide, this phenomenon is causing widespread concern because it leads to changes in weather, increase of sea levels, extinction of species, among others . According to this, the one that is causing widespread concern is "As levels of carbon dioxide increase, average global temperatures are increasing".
Welkom is actually the second-largest city in the province of FREE STATE in South Africa, located about 140 kilometres northeast of the provincial capital, Bloemfontein.
Th province was formerly known as the Orange Free State before the year 1995. Interestingly, it is the only one of the four original provinces of South Africa which did not undergo border changes, excluding the reincorporation of Bantustans.
